[wp-trac] [WordPress Trac] #64368: `Could not instantiate mail function` errors sending mail in 6.9

[WordPress Trac]

#64368: `Could not instantiate mail function` errors sending mail in 6.9
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 Reporter:  desrosj       |       Owner:  SirLouen
     Type:  defect (bug)  |      Status:  accepted
 Priority:  normal        |   Milestone:  6.9.1
Component:  Mail          |     Version:  6.9
 Severity:  normal        |  Resolution:
 Keywords:  has-patch     |     Focuses:
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Comment (by Monarobase):

 Thank you for your answer.

 You mention that you do not want to remove the default return path
 configured by web hosts.

 However cPanel does not use the mail.force_extra_parameters in PHP to
 configure the default return path. It defines the default return path with
 the MTA (exim) when no return path is provided by PHP.

 Using mail.force_extra_parameters is not the best solution to configure
 the default return path.

 If WordPress defines a return path than the default return path is not
 used.

 cPanel is the most used hosting panel, millions of WordPress websites use
 it.

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Ticket URL: <https://core.trac.wordpress.org/ticket/64368#comment:45>
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